core/homeassistant/components/amcrest/services.py

63 lines
2.5 KiB
Python

"""Support for Amcrest IP cameras."""
from __future__ import annotations
from homeassistant.auth.models import User
from homeassistant.auth.permissions.const import POLICY_CONTROL
from homeassistant.const import ATTR_ENTITY_ID, ENTITY_MATCH_ALL, ENTITY_MATCH_NONE
from homeassistant.core import HomeAssistant, ServiceCall, callback
from homeassistant.exceptions import Unauthorized, UnknownUser
from homeassistant.helpers.dispatcher import async_dispatcher_send
from homeassistant.helpers.service import async_extract_entity_ids
from .camera import CAMERA_SERVICES
from .const import CAMERAS, DATA_AMCREST, DOMAIN
from .helpers import service_signal
@callback
def async_setup_services(hass: HomeAssistant) -> None:
"""Set up the Amcrest IP Camera services."""
def have_permission(user: User | None, entity_id: str) -> bool:
return not user or user.permissions.check_entity(entity_id, POLICY_CONTROL)
async def async_extract_from_service(call: ServiceCall) -> list[str]:
if call.context.user_id:
user = await hass.auth.async_get_user(call.context.user_id)
if user is None:
raise UnknownUser(context=call.context)
else:
user = None
if call.data.get(ATTR_ENTITY_ID) == ENTITY_MATCH_ALL:
# Return all entity_ids user has permission to control.
return [
entity_id
for entity_id in hass.data[DATA_AMCREST][CAMERAS]
if have_permission(user, entity_id)
]
if call.data.get(ATTR_ENTITY_ID) == ENTITY_MATCH_NONE:
return []
call_ids = await async_extract_entity_ids(hass, call)
entity_ids = []
for entity_id in hass.data[DATA_AMCREST][CAMERAS]:
if entity_id not in call_ids:
continue
if not have_permission(user, entity_id):
raise Unauthorized(
context=call.context, entity_id=entity_id, permission=POLICY_CONTROL
)
entity_ids.append(entity_id)
return entity_ids
async def async_service_handler(call: ServiceCall) -> None:
args = [call.data[arg] for arg in CAMERA_SERVICES[call.service][2]]
for entity_id in await async_extract_from_service(call):
async_dispatcher_send(hass, service_signal(call.service, entity_id), *args)
for service, params in CAMERA_SERVICES.items():
hass.services.async_register(DOMAIN, service, async_service_handler, params[0])